Home / 28,308.74-38,998.53-19,794.94

Finding the Fourth Proportional to 28,308.74, 38,998.53 and 19,794.94

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Solution

The fourth proportional to 28,308.74, 38,998.53 and 19,794.94 is: 27,269.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,308.74 : 38,998.53 = 19,794.94 : x
  2. Step 2: Convert to fraction form
    28,308.74/38,998.53 = 19,794.94/x
  3. Step 3: Cross multiply
    28,308.74x = 38,998.53 × 19,794.94
  4. Step 4: Simplify right side
    28,308.74x = 771,973,561.44
  5. Step 5: Solve for x
    x = 771,973,561.44/28,308.74
  6. Step 6: Final answer
    x = 27,269.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.